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Discussion Starter #1 (Edited)
I've got the titled error/problem with my van. I've taken it in and had a diagnostic which threw up error P0088- fuel rail pressure too high. The diagnostic expert suggested changing the fuel filter, then the fuel regulator valve and finally (the other two didnt work) the pressure sensor on the common rail. I've happy to do these myself so I've done the filter and today the regulator valve but I still have the problem. But just to put my mind at rest I have a Delphi fuel pump which has the regulator on the bottom of it, at the top of the pump there is another sensor/valve/regulator but despite many searches I cannot find out what it is.
I can see a sensor on the rail so i'd imagine its not the high pressure sensor.
Anybody know?


just to add, oddly the van will sometimes through the "anti pollution error" along with code p0088 but will drive fine and not go into limp mode,this make me suspect a faulty sensor thats reporting intermittent errors
 

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Discussion Starter #2
as an update, the thing at the top of the pump (which is a Siemens not a delphi) is a piston immobilizer solenoid. I took the pump off to check whats what and found that the end of the camshaft that drives the pump had shattered. Obviously this needed replacing so I have finally finished that job but I still have the limp mode problem and a few errors,the original P0188 (notably 0001-Fuel volume regulator control circuit high,P0243- Turbocharger wastegate solenoid A malfunction, P0193-fuel rail pressure sensor A circuit high, P0113-intake air temp circuit high input and P0118-engine coolant temp).
Im in the process of checking the wiring to each of the sensors and solenoids responsible for each error.
Im about to book another diagnostic (hopefully this one will be able to do a live diagnostic of the running engine- if i can get the bugger started)

Also oddly my diagnostic(budget streetwize one) wont clear codes despite having the option, anybody have any experience of this?
 

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A lot of budget tools, and even some high-end tools really struggle with Peugeot.
Also, some codes will not clear when the issue is fixed, they do need to be 'hard' reset.
Best tool is the Lexia/Diagbox/PP2000 system. It will also do proper live readings.
 
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